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In order to request an additional factor the user provides user information.
There are multiple options to realize this subactivity, e.g.: Using using federated login, e-mail, showing up at an registration desk, etc.
Input: blah blah user information (e.g. name, affiliation)
Output: blah blahfactor request
*F_SELECTION User Selects Factor
User selects a new factor/authenticator for multi factor authentication.
Typically there are There may be different factor (types), e.g. something you know/have/are, the user may can choose from as well as multiple realization options/products (e.g. Yubikey, Google Authenticator).
Input: List of possible factors/authenticators
Output: factor selected/assigned and known/in possession/... by the user
REFERENCED FROM: B
*F_AUTHENTICATION
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Input: List of possible factors/authenticators
Output: factor selected/assigned and known/in possession/... by the user
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